Grinding attachment for band-saw mills.



J. D. GB BOTT. GRINDING ATTACHMENT FOR BAND SAW MILLS.

APPLICATION rum) $313.10, 1911. 1,006,377." Patented Oct. 17,1911.

ZSHEBTS-SHEETL Wan/wow I J. 1). GEBOTT. GRINDING ATTACHMENT FOB. BANDSAW MILLS. APiLIOATION FILED PEBJO, 1911.

1,006,377; Patented Oct. 17,1911.

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i 25 a 29 E 1 :11] GBoir.

JAY DELL GE BOTT,

OF ONALASKA,

TEXAS.

GRINDING ATTACHMENT FOR BAND-SAW MILLS.

Specification of Letters Patent.

Patented Oct. 17, 1911.

Application filed February 10, 1911. Serial No. 607,881.

T 0 all whom it may concern:

Be it known that I, Jar DELL Gr: Born a citizen of the United States,residing at ()nalaska, in the county of Polk and State of Texas, haveinvented certain new and useful Improvements in Grinding Attachments forBandS-aw Mills; and I do declare the following to be a full, clear, andexact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

This invention relates to improved grinding attachments for band sawwheels, band re-saw wheels and, other pulleys.

One object of the invention is to provide a simple and etlicientgrinding apparatus in which the grinding element is held firm andstationary and which is constructed to reduce the expense and time oftruing up band mill wheels.

Another object of the invention is to provide a grinding attachment ofthis character in which the grinding element may be tilted to dispose itat'any desired angle relatively to the face of the wheel to be ground.

WVith these and otherobjects in view, the invention consists of certainnovel features of construction, and the combination and arrangementofparts as will be more fully described and claimed.

In the accompanying drawings: Figure 1 is a side elevation of a band sawmill equipped with this attachment; Fig. 2 is a top plan view of theattachment detached; Fig.-3 is a side elevation thereof; Fig. 4 is anend elevation thereof; Fig. is a tr ns- "verse vertical section taken onthe line 55 of Fig. 2; F ig. 6 is a detail perspective view of one ofthe grinding elements.

. In the embodiment illustrated, this im proved grinding, device isshown applied to 'a' band saw mill, mounted on a suitable frame-A, inwhich .is journalod the band saw wheelB, over which a band saw C passes.

A grinding machine frame 1 is secured to the base plate of the'milldirectly below the Wheel B, as shown in. Fig. 1, being arrangedlongitudinall across the path of said Wheel and preferably constructedas shown, having laterally extending apertured arms as 2 for connectionwith the mill base plate by bolts or inany other suitable mannor.Upwardly projecting ape'rtured ears as 3 are arranged on said. arms fora purpose to be described.

frame 4., and

A rectangular frame 4 is mounted on the frame 1 and is adjustabletransversely thereof by means of four screw threaded bolls as 5, whichextend through the ears 3 and engage laterally extending lugs as (3 onthe 'll(l! are operable to adjust the frame 1 to bring it into alinementwith the band wheel 13. These logs as (3 are also provided withvertically disposed bolts as 7, which pass through said lugs and engagethe frame 1 to lock said frame t firmly against longitudinal movement.Mounted to slide longitudinally on the side bars of the frame 4: is aframe 8, preferably rectangular in form and having a depending screwthreaded apertured lug 9 engaged with a right and left hand screwthreaded rod 10 mounted in bearings at opposite ends of the frame 4,said-rod extending beyond said frame 4 and provided at one end with ahand wheel 11 and at its other end with a pulley 1:2 to provide for theoperation of the rod either manually or automatically, whcreby thegrinding element may be moved across the face of the band wheel whilebeing ground. 7

A frame 13 is mounted for longitudinal adjustment in the frame 8 in aplane at right angles to the plane of movement of said frame 8. Thisframe 13 is provided at opposite ends with depending screw threadedaperturod lugs as 14, which are engaged with a screw threaded rod 15mounted in hearings on the end members of the frame 8 and one end ofwhich projects beyond said frame 8 and is provided with a hand wheel 16for turning said rod 15 and adjusting the frame 13 longitudinally of theframe 8. This frame 13 is provided at opposite ends with upwartfllyprojecting apertured ears as 17 for a purpose to be described.

A grinding member 18, preferably in the form of a rectangular element isdctachably mounted in a tilting frame 19, the end members 20 of whichare preferably substantially triangular in shape, as shown in Figs. 1, 4and 5, with their apices pivotally connected to the apertured cars as 17of the frame 13.

Vertically disposed adjustable screw threaded rods 21 and 22 areconnected at their upper ends to the opposite sides of the end members20 and have a screw threaded engagement with the frame 13, and areprovided with set nuts as 23 for locking the. rods, and consequently thegrinding elements 18 in the desired position relatively to the face ofthe wheel to be ground.

The grinding elements may be made of iron, carborundum, stone, emery,brick or any suitable material and are interchangeable, having theirworking faces longitudinally concaved to fit wheels of varyingdiameters.

From the foregoing description taken in connection with the accompanyingdrawings, the construction and operation of the invention will bereadily understood without requiring a more extended explanationjVarious changes in the form, proportion and the minor details ofconstruction may be resorted to without departing from the principle orsacrificing any of the advantages of the invention, as claimed.

I claim as my invention:

1, A band saw mill grinding attachment comprising a supporting base, arectangular frame mounted for lateral adjustment on said base, a framemounted to slide longitudinally on said rectangular frame and having adepended screw threaded apertured lug, a screw threaded revoluble rodmounted in said rectangular frame and engaged with said apertured lugto-move said sliding frame longitudinally, a threaded rod mounted onsaid sliding frame and. extending across said first mentioned. rod ,in aplane above it, a frame mounted on said last mentioned rod andadjustable transversely relative to said rectangular frame, a framemounted to tilt longitudinally on said transversely adjustable frame, agrinding ele- ,mcnt secured to said tilting frame, said grinding elementremovably secured. to said tilting frame, and means. for holding saidtilting framei ,.a djustable osition.

2. 'A band sytv mill grining attachment comprising a supporting'basehaving upwardly projecting apertured cars, a rectangular frame havinglaterally extending apertured lugs, bolts in said lugs for securing saidframe to said base, set screws mount ed on said apertured ears forengagement with said lugs readjust said frame laterally relatively tosaid base, a'frame mounted to slide longitudinally? on said rectangularframe, and having a'depending screw threaded apertured lu screw'threaded revoluble rod mounted longitudinallyin said rectangularframeand enga'ged with the apertured lug in said sliding frame andoperable to move said frame longitudinally, a screw threaded rod mountedon said sliding frame and extending across said firsbmentioned rod in aplane above it, a frame mounted on said last-mentioned rodof saidsliding frame and adjustable transversely relative to said rectangularframe of said rod and moving in a plane at right angles to the plane ofmovement of said sliding frame, a frame mounted to tilt longitudinallyon said transverscly adjustable frame, a grinding element secured tosaid tilting frame, and means for holding said tilting frame in adjustedposition. 0

In testimony whereof I have hereunto set my hand in presence of twosubscribing witnesses.

JAY DELL GE BUTT.

Witnesses:

S. BoUrLu'r'r, C. S. HAvis.

